TV is the transmission and reception of images of moving objects by radio waves. TV starts wherever the event we wish to see occurs. It is made into a picture by the TV camera which then turns it into electricity. The electricity is changed into radio frequency power. It is sent out by a transmitter in the form of radio waves. These set up tiny electric current in the antenna on the roof. These are conducted down to the TV set. They are amplified and turned into a picture again. The whole process happen so quickly that the action at home is seen precisely at almost the same time it occurs elsewhere.